Alexander Demidovskij demid5111

## 1_install_opencv_ubuntu.md

      
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                demid5111
                / 1_install_opencv_ubuntu.md
            
            
              Last active
              November 22, 2023 08:41
            
              
                Instructions for installing opencv on Ubuntu 18.04
              
          
    Install OpenCV 4.5 on Ubuntu 18.04

Pre-configured OpenCV for Python from PyPi


open the terminal
check Python3 installation: python3 --version
go to official website to learn details: https://pypi.org/project/opencv-python/
choose the most complete package and run: python3 -m pip install opencv-contrib-python
often you will not find the pip installed by default, therefore use the
corresponding steps from the


## 1_install_opencv_win.md

      
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                demid5111
                / 1_install_opencv_win.md
            
            
              Last active
              June 19, 2024 14:06
            
              
                Instructions for installing opencv on Windows 10
              
          
    Install OpenCV 4.5 on Windows 10

Pre-configured OpenCV for Python from PyPi


open the terminal (Ctrl+R + cmd)
check Python3 installation: py --version
go to official website to learn details: https://pypi.org/project/opencv-python/
choose the most complete package and run: py -m pip install opencv-contrib-python
check installation by entering the Python REPL: py
import tha library: import cv2


## 1_install_opencv_mac.md

      
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                demid5111
                / 1_install_opencv_mac.md
            
            
              Last active
              February 9, 2021 16:35
            
              
                Instructions for installing opencv on macOS
              
          
    Install OpenCV 4.5 on macOS

Pre-configured OpenCV for Python from PyPi


open the terminal
check Python3 installation: python3 --version
go to official website to learn details: https://pypi.org/project/opencv-python/
choose the most complete package and run: pip install opencv-contrib-python
check installation by entering the Python REPL: python3
import tha library: import cv2


## main03.cpp
#include <iostream>
#include <vector>

int main () {
    std::vector<int> counters = {10, 20, 30};

    // need mutable as lambda by default is a const expression
    auto passByValueLambda = [=] () mutable {
        std::cout << "Hello, lambda by value" << std::endl;
        // modifying the copy - original vector is not influenced

## main02.cpp
#include <iostream>

int main () {
    int counter = 10;
    auto basicLambdaFunc0 = [] () { std::cout << "Hello, lambda" << counter << std::endl;};

    basicLambdaFunc0();
}

## main01.cpp
#include <iostream>

int main () {
    // the most used form of lambdas without return type
    auto basicLambdaFunc0 = [] () { std::cout << "Hello, lambda0" << std::endl;};

    // omitting parameters
    auto basicLambdaFunc1 = [] { std::cout << "Hello, lambda1" << std::endl;};

    // the most detailed syntax
	#include <iostream>
	#include <vector>

	int main () {
	std::vector<int> counters = {10, 20, 30};

	// need mutable as lambda by default is a const expression
	auto passByValueLambda = [=] () mutable {
	std::cout << "Hello, lambda by value" << std::endl;
	// modifying the copy - original vector is not influenced
	#include <iostream>

	int main () {
	int counter = 10;
	auto basicLambdaFunc0 = [] () { std::cout << "Hello, lambda" << counter << std::endl;};

	basicLambdaFunc0();
	}
	#include <iostream>

	int main () {
	// the most used form of lambdas without return type
	auto basicLambdaFunc0 = [] () { std::cout << "Hello, lambda0" << std::endl;};

	// omitting parameters
	auto basicLambdaFunc1 = [] { std::cout << "Hello, lambda1" << std::endl;};

	// the most detailed syntax